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authorPablo Neira Ayuso <pablo@netfilter.org>2018-03-27 12:53:07 +0300
committerPablo Neira Ayuso <pablo@netfilter.org>2018-03-30 12:29:19 +0300
commit02c7b25e5f54321b9063e18d4f52cce07f8e081d (patch)
treec497bb71b3f152f3f07ea93dfbd605632e61457a /net/bridge
parentcc07eeb0e5ee18895241460bdccf91a4952731f9 (diff)
downloadlinux-02c7b25e5f54321b9063e18d4f52cce07f8e081d.tar.xz
netfilter: nf_tables: build-in filter chain type
One module per supported filter chain family type takes too much memory for very little code - too much modularization - place all chain filter definitions in one single file. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/bridge')
-rw-r--r--net/bridge/netfilter/Kconfig2
-rw-r--r--net/bridge/netfilter/Makefile1
-rw-r--r--net/bridge/netfilter/nf_tables_bridge.c81
3 files changed, 1 insertions, 83 deletions
diff --git a/net/bridge/netfilter/Kconfig b/net/bridge/netfilter/Kconfig
index 225d1668dfdd..f212447794bd 100644
--- a/net/bridge/netfilter/Kconfig
+++ b/net/bridge/netfilter/Kconfig
@@ -5,7 +5,7 @@
menuconfig NF_TABLES_BRIDGE
depends on BRIDGE && NETFILTER && NF_TABLES
select NETFILTER_FAMILY_BRIDGE
- tristate "Ethernet Bridge nf_tables support"
+ bool "Ethernet Bridge nf_tables support"
if NF_TABLES_BRIDGE
diff --git a/net/bridge/netfilter/Makefile b/net/bridge/netfilter/Makefile
index 2f28e16de6c7..4bc758dd4a8c 100644
--- a/net/bridge/netfilter/Makefile
+++ b/net/bridge/netfilter/Makefile
@@ -3,7 +3,6 @@
# Makefile for the netfilter modules for Link Layer filtering on a bridge.
#
-obj-$(CONFIG_NF_TABLES_BRIDGE) += nf_tables_bridge.o
obj-$(CONFIG_NFT_BRIDGE_META) += nft_meta_bridge.o
obj-$(CONFIG_NFT_BRIDGE_REJECT) += nft_reject_bridge.o
diff --git a/net/bridge/netfilter/nf_tables_bridge.c b/net/bridge/netfilter/nf_tables_bridge.c
deleted file mode 100644
index ffb8580dfdac..000000000000
--- a/net/bridge/netfilter/nf_tables_bridge.c
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
- * Copyright (c) 2013 Pablo Neira Ayuso <pablo@netfilter.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Development of this code funded by Astaro AG (http://www.astaro.com/)
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/netfilter_bridge.h>
-#include <net/netfilter/nf_tables.h>
-#include <linux/ip.h>
-#include <linux/ipv6.h>
-#include <net/netfilter/nf_tables_ipv4.h>
-#include <net/netfilter/nf_tables_ipv6.h>
-
-static unsigned int
-nft_do_chain_bridge(void *priv,
- struct sk_buff *skb,
- const struct nf_hook_state *state)
-{
- struct nft_pktinfo pkt;
-
- nft_set_pktinfo(&pkt, skb, state);
-
- switch (eth_hdr(skb)->h_proto) {
- case htons(ETH_P_IP):
- nft_set_pktinfo_ipv4_validate(&pkt, skb);
- break;
- case htons(ETH_P_IPV6):
- nft_set_pktinfo_ipv6_validate(&pkt, skb);
- break;
- default:
- nft_set_pktinfo_unspec(&pkt, skb);
- break;
- }
-
- return nft_do_chain(&pkt, priv);
-}
-
-static const struct nft_chain_type filter_bridge = {
- .name = "filter",
- .type = NFT_CHAIN_T_DEFAULT,
- .family = NFPROTO_BRIDGE,
- .owner = THIS_MODULE,
- .hook_mask = (1 << NF_BR_PRE_ROUTING) |
- (1 << NF_BR_LOCAL_IN) |
- (1 << NF_BR_FORWARD) |
- (1 << NF_BR_LOCAL_OUT) |
- (1 << NF_BR_POST_ROUTING),
- .hooks = {
- [NF_BR_PRE_ROUTING] = nft_do_chain_bridge,
- [NF_BR_LOCAL_IN] = nft_do_chain_bridge,
- [NF_BR_FORWARD] = nft_do_chain_bridge,
- [NF_BR_LOCAL_OUT] = nft_do_chain_bridge,
- [NF_BR_POST_ROUTING] = nft_do_chain_bridge,
- },
-};
-
-static int __init nf_tables_bridge_init(void)
-{
- nft_register_chain_type(&filter_bridge);
-
- return 0;
-}
-
-static void __exit nf_tables_bridge_exit(void)
-{
- nft_unregister_chain_type(&filter_bridge);
-}
-
-module_init(nf_tables_bridge_init);
-module_exit(nf_tables_bridge_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
-MODULE_ALIAS_NFT_CHAIN(AF_BRIDGE, "filter");